pci_up1000.c revision 1.9
1/* $OpenBSD: pci_up1000.c,v 1.9 2004/07/18 02:18:26 deraadt Exp $ */ 2/* $NetBSD: pci_up1000.c,v 1.6 2000/12/28 22:59:07 sommerfeld Exp $ */ 3 4/*- 5 * Copyright (c) 2000 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40#include <sys/types.h> 41#include <sys/param.h> 42#include <sys/time.h> 43#include <sys/systm.h> 44#include <sys/errno.h> 45#include <sys/device.h> 46 47#include <uvm/uvm_extern.h> 48 49#include <machine/autoconf.h> 50#include <machine/bus.h> 51#include <machine/intr.h> 52 53#include <dev/isa/isavar.h> 54 55#include <dev/pci/pcireg.h> 56#include <dev/pci/pcivar.h> 57#include <dev/pci/pciidereg.h> 58#include <dev/pci/pciidevar.h> 59 60#include <alpha/pci/irongatevar.h> 61 62#include <alpha/pci/pci_up1000.h> 63#include <alpha/pci/siovar.h> 64#include <alpha/pci/sioreg.h> 65 66#include "sio.h" 67 68int api_up1000_intr_map(void *, pcitag_t, int, int, pci_intr_handle_t *); 69const char *api_up1000_intr_string(void *, pci_intr_handle_t); 70int api_up1000_intr_line(void *, pci_intr_handle_t); 71void *api_up1000_intr_establish(void *, pci_intr_handle_t, 72 int, int (*func)(void *), void *, char *); 73void api_up1000_intr_disestablish(void *, void *); 74 75void *api_up1000_pciide_compat_intr_establish(void *, struct device *, 76 struct pci_attach_args *, int, int (*)(void *), void *); 77void api_up1000_pciide_compat_intr_disestablish(void *, void *); 78 79void 80pci_up1000_pickintr(struct irongate_config *icp) 81{ 82 bus_space_tag_t iot = &icp->ic_iot; 83 pci_chipset_tag_t pc = &icp->ic_pc; 84 85 pc->pc_intr_v = icp; 86 pc->pc_intr_map = api_up1000_intr_map; 87 pc->pc_intr_string = api_up1000_intr_string; 88 pc->pc_intr_line = api_up1000_intr_line; 89 pc->pc_intr_establish = api_up1000_intr_establish; 90 pc->pc_intr_disestablish = api_up1000_intr_disestablish; 91 92 pc->pc_pciide_compat_intr_establish = 93 api_up1000_pciide_compat_intr_establish; 94 pc->pc_pciide_compat_intr_disestablish = 95 api_up1000_pciide_compat_intr_disestablish; 96 97#if NSIO 98 sio_intr_setup(pc, iot); 99 set_iointr(&sio_iointr); 100#else 101 panic("pci_up1000_pickintr: no I/O interrupt handler (no sio)"); 102#endif 103} 104 105int 106api_up1000_intr_map(void *icv, pcitag_t bustag, int buspin, int line, pci_intr_handle_t *ihp) 107{ 108 struct irongate_config *icc = icv; 109 pci_chipset_tag_t pc = &icc->ic_pc; 110 int bus, device, function; 111 112 if (buspin == 0) { 113 /* No IRQ used. */ 114 return 1; 115 } 116 if (buspin > 4) { 117 printf("api_up1000_intr_map: bad interrupt pin %d\n", 118 buspin); 119 return 1; 120 } 121 122 alpha_pci_decompose_tag(pc, bustag, &bus, &device, &function); 123 124 /* 125 * The console places the interrupt mapping in the "line" value. 126 * A value of (char)-1 indicates there is no mapping. 127 */ 128 if (line == 0xff) { 129 printf("api_up1000_intr_map: no mapping for %d/%d/%d\n", 130 bus, device, function); 131 return (1); 132 } 133 134 /* XXX Check for 0? */ 135 if (line > 15) { 136#ifdef DIAGNOSTIC 137 printf("api_up1000_intr_map: ISA IRQ too large (%d)\n", 138 line); 139#endif 140 return (1); 141 } 142 if (line == 2) { 143#ifdef DIAGNOSTIC 144 printf("api_up1000_intr_map: changed IRQ 2 to IRQ 9\n"); 145#endif 146 line = 9; 147 } 148 149 *ihp = line; 150 return (0); 151} 152 153const char * 154api_up1000_intr_string(void *icv, pci_intr_handle_t ih) 155{ 156#if 0 157 struct irongate_config *icp = icv; 158#endif 159 160 return sio_intr_string(NULL /*XXX*/, ih); 161} 162 163int 164api_up1000_intr_line(void *icv, pci_intr_handle_t ih) 165{ 166 return sio_intr_line(NULL /*XXX*/, ih); 167} 168 169void * 170api_up1000_intr_establish(void *icv, pci_intr_handle_t ih, int level, 171 int (*func)(void *), void *arg, char *name) 172{ 173#if 0 174 struct irongate_config *icp = icv; 175#endif 176 177 return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func, 178 arg, name); 179} 180 181void 182api_up1000_intr_disestablish(void *icv, void *cookie) 183{ 184#if 0 185 struct irongate_config *icp = icv; 186#endif 187 188 sio_intr_disestablish(NULL /*XXX*/, cookie); 189} 190 191void * 192api_up1000_pciide_compat_intr_establish(void *icv, struct device *dev, 193 struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg) 194{ 195 pci_chipset_tag_t pc = pa->pa_pc; 196 void *cookie = NULL; 197 int bus, irq; 198 199 alpha_pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL); 200 201 /* 202 * If this isn't PCI bus #0, all bets are off. 203 */ 204 if (bus != 0) 205 return (NULL); 206 207 irq = PCIIDE_COMPAT_IRQ(chan); 208#if NSIO 209 cookie = sio_intr_establish(NULL /*XXX*/, irq, IST_EDGE, IPL_BIO, 210 func, arg, "up 1000 irq"); 211 if (cookie == NULL) 212 return (NULL); 213#endif 214 return (cookie); 215} 216 217void 218api_up1000_pciide_compat_intr_disestablish(void *v, void *cookie) 219{ 220 sio_intr_disestablish(NULL, cookie); 221} 222